Lowers the target’s Sp. Atk and Sp. Def by 1 stat rank when a move, sync move, or max move used by the user’s Pokémon targeting that opponent is successful.
GamePress
Lowers the target’s Sp. Atk and Sp. Def by 1 stat rank when a move, sync move, or max move used by the user’s Pokémon targeting that opponent is successful.